Add about dialog.

src/gui/AboutDialog.h

@@ -0,0 +1,40 @@
+/*
+ *  Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 or (at your option)
+ *  version 3 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef KEEPASSX_ABOUTDIALOG_H
+#define KEEPASSX_ABOUTDIALOG_H
+
+#include <QtCore/QScopedPointer>
+#include <QtGui/QDialog>
+
+namespace Ui {
+    class AboutDialog;
+}
+
+class AboutDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit AboutDialog(QWidget* parent = 0);
+    ~AboutDialog();
+
+private:
+    QScopedPointer<Ui::AboutDialog> m_ui;
+};
+
+#endif // KEEPASSX_ABOUTDIALOG_H